C/2025 L2 (MAPS)

Metadata

Parameter Value
Designation C/2025 L2 (MAPS)
Type C
Perihelion (tp_cal, UTC) 2025-12-20T15:53:32.524800Z
Orbit solution date (soln_date, UTC) 2026-03-21T13:42:22Z
Obs used 364
NEO -
M1 10.700
K1 11.500
PC -
Discovery observation (MPC, UTC) 2025-06-02T07:22:26.400000Z
Discovery magnitude (MPC) 18.70 G
Discovery observatory (MPC) W94 · MAPS, San Pedro de Atacama
Osculating Elements
Parameter Value
Epoch (epoch_cal, TDB) 2025-08-23.0000000
e 0.99440586
q (au) 2.833648
a (au) 506.538999
i (deg) 86.582488
Ω (om, deg) 134.984917
ω (w, deg) 232.642828
M (ma, deg) 359.989655

Magnitude

C/2025 L2 (MAPS) · Magnitude (Full range)

Scatter + Global Linear

$$ M_a = (9.145 + 5.124\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta $$ $$ \theta = 180^\circ - \alpha $$ $$ \Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b) $$ $$ \Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1 $$

Model Parameters

Parameter Value
H0 9.145
n 5.124
gf 1.000
gb -1.000
k 1.000
δ90 10.000
Parameter Symbol Range Description
Absolute magnitude at 1 AU from Sun and Earth H0 -5 to 20 Intrinsic brightness of the comet
Photometric slope parameter n 2 to 6 Rate of brightness change with heliocentric distance
Forward scattering asymmetry factor gf 0.8 to 1 Degree of forward scattering
Backward scattering asymmetry factor gb -1 to -0.5 Degree of backward scattering
Partitioning coefficient k 0.8 to 1 Ratio between forward/backward scattering contributions
Dust-to-gas brightness ratio δ90 1 to 10 Relative contribution of dust scattering to gas emission

Reference: EPSC-DPS2025-160

Finding Chart

C/2025 L2 (MAPS) · Next 30 Days

Ephemeris

Date/Time (UTC) RA (J2000) Dec (J2000) Nearest HIP Dist from HIP (arcmin)
2026-03-26 00:00 02:14:59.97 -56:47:34.9 HIP 10470 7.68
2026-03-26 12:00 02:16:45.08 -56:43:15.2 HIP 10470 18.85
2026-03-27 00:00 02:18:30.08 -56:38:53.3 HIP 10907 17.50
2026-03-27 12:00 02:20:14.95 -56:34:29.1 HIP 10907 12.61
2026-03-28 00:00 02:21:59.71 -56:30:02.8 HIP 11123 9.92
2026-03-28 12:00 02:23:44.33 -56:25:34.3 HIP 11123 8.61
2026-03-29 00:00 02:25:28.83 -56:21:03.6 HIP 11123 22.54
2026-03-29 12:00 02:27:13.19 -56:16:30.7 HIP 11531 15.56
2026-03-30 00:00 02:28:57.42 -56:11:55.7 HIP 11531 14.43
2026-03-30 12:00 02:30:41.50 -56:07:18.6 HIP 11880 24.38
2026-03-31 00:00 02:32:25.43 -56:02:39.3 HIP 11880 17.77
2026-03-31 12:00 02:34:09.22 -55:57:58.0 HIP 11880 22.34
2026-04-01 00:00 02:35:52.85 -55:53:14.5 HIP 12130 22.40
2026-04-01 12:00 02:37:36.33 -55:48:29.0 HIP 12130 20.96
2026-04-02 00:00 02:39:19.65 -55:43:41.4 HIP 12541 22.79
2026-04-02 12:00 02:41:02.81 -55:38:51.8 HIP 12541 19.90
2026-04-03 00:00 02:42:45.80 -55:34:00.2 HIP 12878 23.62
2026-04-03 12:00 02:44:28.62 -55:29:06.6 HIP 12878 9.71
2026-04-04 00:00 02:46:11.26 -55:24:11.0 HIP 12878 10.07
2026-04-04 12:00 02:47:53.74 -55:19:13.5 HIP 13203 20.55
2026-04-05 00:00 02:49:36.03 -55:14:14.0 HIP 13203 6.67
2026-04-05 12:00 02:51:18.14 -55:09:12.7 HIP 13315 4.75
2026-04-06 00:00 02:53:00.07 -55:04:09.4 HIP 13315 14.07
2026-04-06 12:00 02:54:41.81 -54:59:04.3 HIP 13794 25.14
2026-04-07 00:00 02:56:23.36 -54:53:57.4 HIP 13794 12.56
2026-04-07 12:00 02:58:04.71 -54:48:48.7 HIP 13886 6.41
2026-04-08 00:00 02:59:45.87 -54:43:38.2 HIP 13886 9.42
2026-04-08 12:00 03:01:26.83 -54:38:25.9 HIP 14163 22.00
2026-04-09 00:00 03:03:07.59 -54:33:11.9 HIP 14163 25.32
2026-04-09 12:00 03:04:48.14 -54:27:56.2 HIP 14163 35.72
2026-04-10 00:00 03:06:28.49 -54:22:38.8 HIP 14611 33.70
2026-04-10 12:00 03:08:08.62 -54:17:19.8 HIP 14611 22.73
2026-04-11 00:00 03:09:48.55 -54:11:59.1 HIP 14611 19.56
2026-04-11 12:00 03:11:28.25 -54:06:36.9 HIP 14706 23.13
2026-04-12 00:00 03:13:07.75 -54:01:13.1 HIP 14706 30.78
2026-04-12 12:00 03:14:47.02 -53:55:47.8 HIP 15166 42.29
2026-04-13 00:00 03:16:26.07 -53:50:21.0 HIP 15166 48.00
2026-04-13 12:00 03:18:04.89 -53:44:52.7 HIP 15618 46.85
2026-04-14 00:00 03:19:43.49 -53:39:23.0 HIP 15762 36.74
2026-04-14 12:00 03:21:21.86 -53:33:51.9 HIP 15613 30.69
2026-04-15 00:00 03:23:00.00 -53:28:19.4 HIP 15613 30.65
2026-04-15 12:00 03:24:37.90 -53:22:45.5 HIP 16039 21.68
2026-04-16 00:00 03:26:15.56 -53:17:10.4 HIP 16039 7.93